347352139 has 2 divisors, whose sum is σ = 347352140. Its totient is φ = 347352138.

The previous prime is 347352127. The next prime is 347352149. The reversal of 347352139 is 931253743.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 347352139 - 2⁷ = 347352011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 347352098 and 347352107.

It is not a weakly prime, because it can be changed into another prime (347352149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173676069 + 173676070.

It is an arithmetic number, because the mean of its divisors is an integer number (173676070).

Almost surely, 2^347352139 is an apocalyptic number.

347352139 is a deficient number, since it is larger than the sum of its proper divisors (1).

347352139 is an equidigital number, since it uses as much as digits as its factorization.

347352139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 37.

The square root of 347352139 is about 18637.3855194338. The cubic root of 347352139 is about 702.9482043306.

The spelling of 347352139 in words is "three hundred forty-seven million, three hundred fifty-two thousand, one hundred thirty-nine".